In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Q: The Neotropical pygmy squirrel ( " Sciurillus pusillus " ) is a South American species of tree squirrel , being the only living species in the genus Sciurillus and the subfamily Sciurillinae .

A: Neotropical Pygmy Squirrel , " Sciurillus pusillus " , is a very small squirrel species from South America .
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Q: The option to capture the moved pawn " en passant " must be exercised on the move immediately following the double-step pawn advance , or it is lost for the remainder of the game .

A: To capture " en passant " can only be done on the move right after the double-square pawn advance .
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Q: Star Wars : Knights of the Old Republic ( sometimes known simply as Knights of the Old Republic or KOTOR ) is a role-playing video game set in the " Star Wars " universe .

A:
The game , also known as " KotOR " , is a role-playing game .
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